Stainless Steel Slotted Countersunk Flat Head Screws
Product Overview
Slotted Countersunk Flat Head Screws are precision-engineered fasteners widely used in applications where a flush surface finish is required. Designed with a flat head that tapers toward the shank, these screws seamlessly lie flush with the material’s surface upon installation, providing aesthetic and functional benefits. Featuring a single slot drive type, Slotted Countersunk Screws work effectively with flat-blade screwdrivers and are ideal for lighter-duty assembly operations.
At Flybear Fastener, our stainless steel Slotted Countersunk Flat Head Screws are manufactured to exceed industry standards, offering unmatched durability and corrosion resistance.
Product Specification Table
| Attribute | Specification |
|---|---|
| Product Name | Slotted Countersunk Flat Head Screws |
| Drive Type | Slotted |
| Head Type | Countersunk Flat Head |
| Material | Stainless Steel (A2, A4) |
| Thread Type | Metric & Unified National Thread (UNC/UNF) |
| Length Range | 6mm to 100mm |
| Diameter Range | M2 to M10 |
| Finish | Natural finish or passivated |
| Standard | DIN 963 / ISO 2009 |
Technical Parameter Table
| Parameter | Value |
|---|---|
| Tensile Strength | ≥ 700 MPa (A2), ≥ 800 MPa (A4) |
| Yield Strength | ≥ 450 MPa |
| Hardness | 21 HRC min (A2), 22 HRC min (A4) |
| Torque Resistance | As per DIN 963 / ISO 2009 |
| Operating Temperature Range | -50°C to +300°C |
| Salt Spray Resistance | 240 hours (passivated finish) |
Material and Manufacturing Process
Our Slotted Countersunk Flat Head Screws are primarily fabricated from high-grade A2 and A4 stainless steel. A2 stainless steel is suitable for interior and mildly corrosive environments, while A4 (marine-grade) is ideal for outdoor, chemical, or marine environments due to its superior corrosion resistance.
The production process includes:
- Wire drawing and straightening
- Cold heading to form the head shape
- Slot machining and threading
- Heat treatment (if necessary)
- Surface passivation for enhanced corrosion resistance
- 100% inspection before packaging
Advanced CNC processing ensures uniformity, precision, and durability in every unit produced by Flybear Fastener.
Common Industries and Applications
Slotted Countersunk Flat Head Screws are widely used in:
- Electronics assembly
- Automotive interiors
- Aerospace panels and components
- Home appliances
- Furniture manufacturing
- Woodworking and cabinetry
- HVAC systems
They are frequently included in assemblies where a flush finish is critical, such as mounting plates, brackets, cover panels, and enclosures.
Advantages and Competitive Edge
Slotted Countersunk Flat Head Screws – Benefits That Make a Difference
At Flybear Fastener, every fastener we produce reflects our dedication to quality and functionality:
- Premium Materials: Only top-grade stainless steel (A2/A4), ensuring excellent mechanical properties and rust resistance.
- Precision Manufacturing: Controlled thread pitch and head angles meet or exceed DIN/ISO standards.
- Advanced Surface Treatments: Our passivation process significantly enhances stainless steel’s corrosion resistance.
- Custom Capabilities: We can produce tailored dimensions and head types based on customer drawings or prototypes.
- Ample Inventory: In-stock availability backed by robust logistics to ensure timely delivery.
- Dedicated Support: Comprehensive post-sale and technical assistance.
Quality Inspection & Control
Every batch of Slotted Countersunk Flat Head Screws undergoes rigorous quality testing, including:
- Dimensional accuracy checks using micrometers and thread gauges
- Salt spray testing for corrosion resistance
- Mechanical strength testing under standardized loads
- Slot torque testing to ensure proper fastener function
Our ISO 9001-certified inspection protocols ensure high performance and customer satisfaction.
Product Selection and Buying Guide
Choosing the right screw involves evaluating:
- Application load and stress needs
- Material compatibility (especially for marine or chemical environments)
- Aesthetic requirements for visible assembly components
- Standard compliance (DIN 963, ISO 2009)
For bulk orders or specific requirements, you can always contact us for recommendations tailored to your project.
Conclusion & Company Introduction
At Flybear Fastener, we consistently pursue excellence in delivering reliable and high-performance fastener products. From stainless steel Slotted Countersunk Flat Head Screws to a full line of industry-grade fasteners, we offer solutions tailored to all industries and applications.
We understand that timely delivery, consistent quality, and expert support are key to our customer’s success. That’s why we back our offerings with prompt support and industry-specific solutions.
We always uphold the belief: “Quality First, Customer Foremost” and are committed to delivering excellent products and one-stop fastener products and solutions. Explore our site for more fastening tools or contact us directly for quotes and industry insights.
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